Ford Mustang (1999-2004) Service Manual: Transmission Description (Description and Operation)
The 4R70W has the following features:
- Wide ratio gears
- Four speeds
- Rear wheel drive
- Automatic
- Electronic shift
- Torque converter clutch control
- Line pressure controls
The transmission uses Ravigneaux-style double-pinion gearset with two bands, one one-way roller clutch, one mechanical diode and four friction clutches to produce four forward gears and Reverse.
4R70W Automatic Transmission

Automatic Transaxle/Transmission
General Specifications
a - MERCON V is not interchangeable at this time with the current MERCON
fluids. Check the
transmission fluid level indicator to determine the correct fluid and refer to
the ...
Identification Tags
All vehicles are equipped with a Vehicle Certification Label, located
on the driver side door lock post.
For correct transmission identification, refer to the code in the space
marked TR.
...
Other materials:
Drive Pinion
Special Tool(s)
Adapter for 205-S127
205-105 (T76P-4020-A3)
Adapter for 205-S127
205-109 (T76P-4020-A9)
Adapter for 205-S127
205-110 (T76P-4020-A10)
Adapter for 205-S127
205-111 (T76P-4020-A11)
Adapter for 20 ...
Pinpoint Test M: DTC B1891 - Air Bag Tone Warning Indicator Circuit
Shorted to Battery or
Ignition
Normal Operation
The restraints control module (RCM) monitors its connection to the
generic electronic module (GEM) at
pin 10. This connection is used to signal a chime if the air bag
indicator is inoperative and another SRS
fault exists. If the RC ...
Exhaust System Neutralizing
WARNING: Exhaust gases contain carbon monoxide, which is harmful to
health and
potentially lethal. Repair exhaust system leaks immediately. Never operate the
engine in an
enclosed area.
WARNING: Exhaust system components are hot.
NOTE: Neutralize the exhau ...
